Sendai, Japan

Tomihisa Ohta

This inventor holds 5 USPTO granted patents. Top assignee: Ajinomoto Co., Ltd.. Active years: 1989-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomihisa Ohta. Retrieved from https://idiyas.com/inventor/tomihisa-ohta

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.3

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1989-1994

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5 patents (USPTO):Explore Patents

Title: Tomihisa Ohta: Innovator in Pharmaceutical Chemistry

Introduction

Tomihisa Ohta is a prominent inventor based in Sendai, Japan. He has made significant contributions to the field of pharmaceutical chemistry, particularly in the development of novel compounds. With a total of 5 patents to his name, Ohta's work has had a considerable impact on drug development.

Latest Patents

Ohta's latest patents include an optically active pyrrolidine derivative and a process for preparing carbapenem compounds. His research focuses on novel amino acid derivatives that serve as intermediates in the preparation of stereospecific carbapenam derivatives. The innovative methods he has developed involve the removal of protecting groups under reducing conditions to form pyrrolidine derivatives, which are further cyclized to create beta-lactam rings. His work emphasizes achieving stereospecificity at the 6-position through precise chemical treatments.

Career Highlights

Throughout his career, Ohta has been associated with Ajinomoto Co., Ltd., a leading company in the food and pharmaceutical industries. His expertise in synthesizing complex chemical compounds has positioned him as a key figure in his field. Ohta's contributions have not only advanced scientific knowledge but have also paved the way for new therapeutic options.

Collaborations

Ohta has collaborated with notable colleagues such as Shigeo Nozoe and Kunisuke Izawa. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Tomihisa Ohta's work exemplifies the spirit of innovation in pharmaceutical chemistry. His patents and collaborations reflect a commitment to advancing the field and improving healthcare outcomes.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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